The Way Basics cube gets better everyday, with the Connect Series you'll get the same strength, storage and style from a traditional cube but with added features. Add a door to your cube or a shelf, connect multiple units together to build a bigger storage unit. Whatever you decide, Way Basics has what you need to make your organization project a success. Easy to assemble with no tools required, the Connect Series features the same 3M adhesive and easy align pins. Simple stick, press and you're ready to get organized! The cubes are non-toxic and environmentally friend, they're safe for your home and family. Features Made to stand upright, do not place on side or back Made with eco-friendly and sustainable zBoard, non-toxic and free of formaldehyde & VOC. Learn benefits here. Easy to assemble, no tools required, just peel the 3M adhesive strips and put together with easy-align pins Easily stack cubes with included connect and align pins Combine with multiple, modular units and customize to meet your needs or space Maximum load 50 lbs (recommended)